From owner-freebsd-hackers@FreeBSD.ORG Fri Oct 5 11:59:52 2007 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 21CBF16A419; Fri, 5 Oct 2007 11:59:52 +0000 (UTC) (envelope-from sharadc@in.niksun.com) Received: from in.niksun.com (210.18.76.166.sify.net [210.18.76.166]) by mx1.freebsd.org (Postfix) with ESMTP id B145013C480; Fri, 5 Oct 2007 11:59:51 +0000 (UTC) (envelope-from sharadc@in.niksun.com) Received: from sharadc.in.niksun.com (unknown [10.60.5.27]) by in.niksun.com (Postfix) with ESMTP id E25E45D86; Fri, 5 Oct 2007 17:37:53 +0530 (IST) From: Sharad Chandra Organization: NIKSUN To: Eric Anderson Date: Fri, 5 Oct 2007 17:26:41 +0530 User-Agent: KMail/1.9.4 References: <200710041725.00842.sharadc@in.niksun.com> <4704E8F1.8070000@freebsd.org> <200710051646.17618.sharadc@in.niksun.com> In-Reply-To: <200710051646.17618.sharadc@in.niksun.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Message-Id: <200710051726.41982.sharadc@in.niksun.com> Cc: freebsd-hackers@freebsd.org Subject: Re: SCSI and SAN X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Oct 2007 11:59:52 -0000 Wether it is SCSI or SANs LUNS, "sysctl kern.disks" always shows da. it= =20 don't distinguish b/w them. and similarly "/usr/local/sbin/smartctl -i da0"= =20 also gives results that is acceptable. Although i don't know what is that=20 Serial no in SANs LUN case. ex: [root@qa7 ~]# /usr/local/sbin/smartctl -i da0 smartctl version 5.37 [amd64-portbld-freebsd6.2] Copyright (C) 2002-6 Bruce= =20 Allen Home page is http://smartmontools.sourceforge.net/ Device: IFT A16F-G2422 Version: 348C Serial number: 0D7A8A6DC19F3500 Device type: disk (pass0:isp0:0:0:0): MODE SENSE(06). CDB: 1a 0 19 0 40 0 (pass0:isp0:0:0:0): CAM Status: SCSI Status Error (pass0:isp0:0:0:0): SCSI Status: Check Condition (pass0:isp0:0:0:0): ILLEGAL REQUEST asc:24,0 (pass0:isp0:0:0:0): Invalid field in CDB Local Time is: Fri Oct 5 03:37:54 2007 EDT Device supports SMART and is Enabled Temperature Warning Disabled or Not Supported on SCSI device pass0 errors don't come. Thanks Sharad Chandra On Friday 05 October 2007 4:46 pm, Sharad Chandra wrote: > Yes, right by analyzing camcontrol devlist it can be told, but i guess not > always. > > [root@qa7 ~]# camcontrol devlist > =A0 =A0 =A0 =A0 =A0 =A0 =A0at scbus0 target 0 lun 0= (da0,pass0) > =A0 =A0 =A0 =A0 =A0 =A0 =A0at scbus0 target 0 lun 1= (da1,pass1) > =A0 =A0 =A0 =A0 =A0 =A0 =A0at scbus0 target 0 lun 2= (da2,pass2) > =A0 =A0 =A0 =A0 =A0 =A0 =A0at scbus0 target 0 lun 3= (da3,pass3) > > Here luns are increasing, so it is SAN confirmed by tool. Now my point is > if i have a SAN of less than 1TB and i make only 1 LUN. what should be > output? guessing: similar to > =A0 =A0 =A0 =A0 =A0 =A0 =A0at scbus0 target 0 lun 0= (da0,pass0) > > Then it will be difficult to tell, whether it is regular SCSI drives or > SAN. Then we need a tool that can tell this da0 belongs to SAN/SCSI or not > > Thanks for any suggestion. > Sharad Chandra > > On Thursday 04 October 2007 6:51 pm, Eric Anderson wrote: > > Sharad Chandra wrote: > > > Hello, > > > > > > How to distinguish if /dev/da* devices are internal scsi drivers or > > > LUNs of external SAN? > > > > camcontrol devlist -v > > > > Might help you.. > > > > Eric